Finding the Fourth Proportional to 213,812.16, 320,623.44 and 113,953.76
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Solution
The fourth proportional to 213,812.16, 320,623.44 and 113,953.76 is: 170,880.12
Step by Step Solution
- Step 1: Write the proportion equation
213,812.16 : 320,623.44 = 113,953.76 : x - Step 2: Convert to fraction form
213,812.16/320,623.44 = 113,953.76/x - Step 3: Cross multiply
213,812.16x = 320,623.44 × 113,953.76 - Step 4: Simplify right side
213,812.16x = 36,536,246,532.13 - Step 5: Solve for x
x = 36,536,246,532.13/213,812.16 - Step 6: Final answer
x = 170,880.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.